http://bugs.winehq.org/show_bug.cgi?id=7990
------- Additional Comments From hverbeet@gmail.com 2007-08-04 14:48 ------- My guess would be that's because ATI drivers don't completely support GL_ARB_texture_non_power_of_two, even though their driver claims to support something like OpenGL 2.0. We emulate support for NPOT textures on drivers that don't support it themselves, but that breaks when shaders are used. You might be able to hack around it by hardcoding gl_info->supported[ARB_TEXTURE_NON_POWER_OF_TWO] to TRUE after the extension detection in dlls/wined3d/directx.c, about line 825